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Friedelite
Friedelite

Fire Opal
Fire Opal



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Friedelite
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Fire Opal

Friedelite and Fire Opal Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
NilArthur Thomas
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent, Translucent
1.5 Refractive Index
1.627-1.6631.370-1.470
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
Amorphous
1.8 Birefringence
0.032-0.035Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Friedelite and Fire Opal Optic Character

Friedelite and Fire Opal optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Friedelite and Fire Opal Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Friedelite and Fire Opal optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Friedelite and Fire Opal Transparency

Similar to their colors, Friedelite and Fire Opal transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Friedelite is Translucent while Friedelite is Translucent in appearance.